In the latest versions of MATLAB Simulink, they have added a block for the OFDM Baseband Modulator. I have gone through the article provided by the MATLAB support on the OFDM block. However, I am confused as to what input shall I feed to the OFDM Modulator block. I tried feeding BPSK symbols but I get an error saying the input dimensions do not match the required input size. The input size mentioned in the MATLAB support is given as [Ndata X Nsymbol X Npilot]. However, I am unable to make my input signal in the form of a signal having three dimensions as required. Please help me in this as to what input shall I feed in or help me in making the signal have three dimensions in Simulink. Also, I would be grateful if anyone of you could help me in giving an example file on how to use the OFDM Modulator block in Simulink. Thank you in advance!

Do these help?

https://in.mathworks.com/help/comm/examples/f-ofdm-vs-ofdm-modulation.html

https://digitalcommons.calpoly.edu/cgi/viewcontent.cgi?article=1063&context=eesp

Thank you for the reply but sorry it doesn't fully answer my question. I wanted to know how to use the in-built OFDM Modulator block in Simulink

THis one?

http://ecelabs.njit.edu/ece489v2/lab6.pdf